Mixing cup



FIG. 1 is a front perspective view of a mixing cup, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines, the areas within them, and the unshaded areas bounded by broken lines and solid lines depict portions of the mixing cup that form no part of the claimed design. 

CLAIM The ornamental design for a mixing cup, as shown and described. 